Physics

Problem

A crate slides eastward across frictionless ice with constant speed. Suddenly, two forces start acting on it simultaneously:

10\,\text{N}

eastward and

10\,\text{N}

northward. Which statement is correct? a) Net force is

0\,\text{N}

; the crate keeps moving unchanged. b) Net force is

20\,\text{N}

toward the north-east; the crate accelerates in that direction. c) Net force is approximately

14\,\text{N}

toward the north-east; the crate accelerates in that direction. d) Net force is approximately

14\,\text{N}

eastward; the crate accelerates only toward the east.